Flat Roofing in Farnham

Farnham at a glance

Postcode districts: GU9, GU10
Population: about 36,971 (GeoNames)
Council area: Waverley Borough Council
Building approval: Waverley Borough Council building control, or a registered building control approver
Nearest main town: Woking, about 13 miles
Guide price region: South East (+10% on West Midlands rates)

What flat roof work do we do in Farnham?

Green and sedum roofs

Garden rooms and outbuildings in Farnham, as elsewhere, often have small flat roofs that are seen from the house and garden. A sedum finish helps them blend in, provided the structure is strong enough and the roof underneath is built properly.

Balconies and roof terraces

Balcony membranes in Farnham wear out like any roof, but faster where they are exposed to foot traffic, furniture and planters. Once the topcoat has worn through or cracked around posts and edges, a full re-waterproofing usually lasts longer than repeated patching.

Warm roof insulation upgrades

Converting a garage, loft space or outbuilding to a room in Farnham changes what the roof needs to do. Once the space is heated, the roof is expected to perform to a higher standard, and a warm build-up is usually the simplest way to get there.

All flat roof services in Farnham:

How much does a flat roof cost in Farnham?

Guide prices at South East rates including VAT. New and replacement roofs get a fixed price after a free survey; repair prices are confirmed once we've found the problem.

Job	Guide price inc VAT
Single garage (18 m²), torch-on felt	£1,650–£2,900
Single garage (18 m²), GRP fibreglass	£1,950–£3,600
Commercial roof (100 m²), single-ply + insulation	£14,550–£23,950
Extension (20 m²), EPDM, new deck + insulation	£3,100–£5,350
Condition survey and leak investigation	£170–£330

What flat roofs are typical in and around Farnham?

In a town like Farnham flat roofs are mostly on low-rise post-war blocks of flats and newer estates where the first extension roofs are now being replaced. Weather matters on a flat roof. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in Farnham?

Where approval is needed it goes to Waverley Borough Council building control, or a registered building control approver. Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. How the rules work.

Which places near Farnham do we cover?

Flat roofing in Farnham: questions

Do you cover Farnham?

Yes, including postcode districts GU9, GU10. Send your postcode with your enquiry and we'll arrange a survey.

Do flat roofs in Farnham need building control approval?

Often. Replacing more than half of a roof over a heated room usually means insulating it to current standards and notifying building control, and structural changes need approval too. In Farnham that's Waverley Borough Council building control, or a registered building control approver. We tell you at the survey and handle it.

Do you also cover Aldershot?

Yes. Aldershot is about 3 miles from Farnham and we cover it too.

What's the best flat roof system for a house in Farnham?

For most garages and extensions it's EPDM or GRP; torch-on felt is the budget option and liquid suits detailed or overlay jobs. We recommend one at the survey.